diff --git a/serving/CMakeLists.txt b/serving/CMakeLists.txt
index c8974c41c77..dd9421fe4ba 100644
--- a/serving/CMakeLists.txt
+++ b/serving/CMakeLists.txt
@@ -99,7 +99,11 @@ add_executable(ms_serving ${SERVING_SRC})
 target_link_libraries(ms_serving mindspore::event mindspore::event_pthreads)
 
 target_link_libraries(ms_serving ${_REFLECTION} ${_GRPC_GRPCPP} ${_PROTOBUF_LIBPROTOBUF} pthread)
-set_target_properties(ms_serving PROPERTIES POSITION_INDEPENDENT_CODE ON)
+
+include(CheckPIESupported)
+check_pie_supported()
+set_property(TARGET ms_serving PROPERTY POSITION_INDEPENDENT_CODE TRUE)
+
 if (ENABLE_D)
     add_compile_definitions(ENABLE_D)
     target_link_libraries(ms_serving ${RUNTIME_LIB})
diff --git a/serving/core/server.cc b/serving/core/server.cc
index c8639c8f694..5a8112bb1f6 100644
--- a/serving/core/server.cc
+++ b/serving/core/server.cc
@@ -72,7 +72,6 @@ grpc::Status CreatGRPCStatus(const Status &status) {
 // Service Implement
 class MSServiceImpl final : public MSService::Service {
   grpc::Status Predict(grpc::ServerContext *context, const PredictRequest *request, PredictReply *reply) override {
-    std::lock_guard<std::mutex> lock(mutex_);
     MSI_TIME_STAMP_START(Predict)
     auto res = Session::Instance().Predict(*request, *reply);
     MSI_TIME_STAMP_END(Predict)
@@ -87,7 +86,6 @@ class MSServiceImpl final : public MSService::Service {
     MSI_LOG(INFO) << "TestService call";
     return grpc::Status::OK;
   }
-  std::mutex mutex_;
 };
 
 static std::pair<struct evhttp *, struct event_base *> NewHttpServer() {